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Finding the Fourth Proportional to 640,596.56, 884,158.40 and 533,061.77

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Solution

The fourth proportional to 640,596.56, 884,158.40 and 533,061.77 is: 735,737.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,596.56 : 884,158.40 = 533,061.77 : x
  2. Step 2: Convert to fraction form
    640,596.56/884,158.40 = 533,061.77/x
  3. Step 3: Cross multiply
    640,596.56x = 884,158.40 × 533,061.77
  4. Step 4: Simplify right side
    640,596.56x = 471,311,038,576.23
  5. Step 5: Solve for x
    x = 471,311,038,576.23/640,596.56
  6. Step 6: Final answer
    x = 735,737.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.